I am working on my first board to have professionally fabricated. Right now I am planning on using seeed studio mainly because they are the cheapest I have found. 10 5cmx5cm boards for $10 is pretty awesome. Their site says they can handle 6 mil traces with 6 mil spacing. I have routed my board to those specifications, and it passes their drc file. I am still a bit worried that this could lead to errors in manufacturing, or will be easy for me to screw up when soldering. It is mostly surface mount components of pretty generous pitches. SOIC and 0805 parts mostly, with a few through hole headers.
Is there any danger to making smaller traces? Is there anything to be gained by making them thicker? I am not expecting current over 100mA or frequencies over 1MHz. I am also planning on paying for 100% etest, so I don't think I need to worry about the fab house delivering non-working boards.
Seeed's Fusion PCB Service
Seeed authorised user review and guide to using their Fusion service